How to gently remind others that they have a bad smell?

If you smell someone else, you don't have to remind them.

There are generally two causes of odor, one is body odor, foot odor and so on. He wants to solve it by himself, but he can't. The other is because he doesn't pay attention to hygiene, which can be solved by taking a bath frequently.

We must first make it clear that a person has a smell, and in most cases he knows it.

If this person only met you once, or this person didn't contact you much later, or even if this person contacted you, the frequency of daily contact was not much, then don't mention it, just bear with it.

If you have frequent contact with this person, you must first find out what kind of smell he belongs to, and then after you remind him, can he improve the problem? If you don't think even mentioning him will solve the problem, then don't mention it.

If he still has these smells even if he takes a bath every day, then this is his trouble in itself. If you mention it, it will embarrass him. He wants to solve this problem more than you do, but he has no choice. Don't embarrass him unless you have a good solution.

If it is because you don't pay attention to hygiene, you can gently remind him. This reminder must be said in private. You can ask him first if the faucet at home is broken recently, or it is inconvenient to take a shower. If it's not convenient to see if you need help, then he may realize that you are saying that he hasn't bathed for a long time. Generally, you may follow the steps you gave and say that the water heater at home is really broken and is being repaired.

This shows that the other party does not take a bath, and due to external factors, the other party has a step down.

Then, remind him that if it is inconvenient to see if he can go to other places to wash, otherwise it will be bad for others to smell it. It's good to make him feel that others haven't smelled it yet, and it won't be too embarrassing. Besides, I think you reminded him in good faith and didn't mean to embarrass him.